Table 2-1. Sync Acceptor, Controls and Indicators - Continued
Locator
Control or Indicator
Function
9146600990 Rev M
BE1-25A Human-Machine Interface
2-5
E
SETTINGS/READINGS
Chart - Continued
0 (GEN SELECT): - continued
After a generator is selected and the FUNCTION SELECT
switch is depressed, the display changes to indicate the
setting number (1 thru 6) in the leftmost position and the
constant (value) in the four rightmost display characters. If a
setting is changed, it must be loaded by operating the LOAD
switch.
1 (BREAKER TIME): These registers hold the charac-
teristic operating times of the various breakers in the system.
Numbers may be entered to represent breaker operating time
over the range of 0.02 to 0.800 seconds.
2 (CORRECT WIDTH): The number in this register
represents the raise and lower speed correction pulse width.
The pulse width is settable from 0 to 99.9 seconds in 0.1
second increments. (Refer to Figure 2-3.)
3 (CORRECT INTVL): The number in this register
represents the raise and lower speed correction pulse
interval. The pulse interval is settable from 0 to 99.9 seconds
in 0.1 second increments. (Refer to Figure 2-3.)
Figure 2-3. Proportional Correction Pulses
4 (MAX SLIP): The number in this register represents the
maximum slip rate that is acceptable for closure of any
breaker that is under the supervision of the Sync Acceptor
Relay. When the slip rate exceeds this setting, the sync
acceptor closure output is inhibited. The maximum slip limit
is adjustable over the range of 0.01 to 0.500 Hz in 0.001 Hz
increments.
5 (GEN. UV): The number in this register represents the
minimum voltage output that the generator must have before
an operator breaker closure attempt is enabled. This value is
adjustable over the range of 40 to 110 Vac in 1.0 volt
increments. If the generator voltage is below this setting,
voltage correction pulses are inhibited.
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